Lung Capacity Testing

Spirometer mouth pieces Quantity: 1000 pieces per pack Length: 1 1/4" (1.25 inches) Diameter (outside width): 1/2" (0.5 inches) Dimensions: 2" x 0.5" x 0.5" Weight: 2 lbs per pack

For measuring vital lung capacity. Needle indicates the blow air-quantity. Measurement range of vital lung capacity from 1000 to 7000 cc's. Unit includes 50 disposable plastic mouth pieces. Weight: 200 gr.